Backpack



FIG. 1 is a front perspective view of a backpack showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a front elevational view thereof with the closure flap in an open position;

FIG. 4 is a rear elevational thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures are for the purpose of illustrating claimed stitching. 

CLAIM The ornamental design for a backpack, as shown and described. 